摘要
本文制备了以中温固体氧离子导体—La0.9Sr0.1Ga0.8Mg0.2O2.85的流延片为小孔扩散障层和氧泵层材料的小孔极限电流型氧传感器,并对其在600℃和650℃两个温度点下的氧敏特性进行了测试。从测试的结果中可以看出:在氧浓度为0.1%～3%的范围内出现较好的极限电流平台,而且极限电流与氧浓度呈现良好的线性关系。此外,当温度为650℃时,使氧浓度在0.5%与3%之间来回跳变,测得传感器的响应时间曲线,从曲线图可读出上升和下降响应时间均为15s左右。
The La0.9Sr0.1Ga0.8Mg0.2O2.85 was used to make the amperometric oxygen sensor with a thin hole,which is solid oxygen ionic conductor in the intermediate temperate area.The diffused barrier and the oxygen pump layer were all made by using the thin film of this material.After that,the oxygen sensitive performance of the manufactured oxygen sensor was tested at 600 ℃ and 650 ℃.At these two temperature points,the tested data shown that there were good limiting current platforms when the oxygen concentration ranged from 0.1% to 3%,and the limiting currents exhibited a linear dependence on oxygen concentration.In addition,the response time was tested in 650 ℃ when the oxygen concentration changed between 0.5% and 3% back and forth.From the response time curves,it can be found that the up and down response times were all about 15 s
出处
《传感技术学报》
CAS
CSCD
北大核心
2012年第10期1340-1343,共4页
Chinese Journal of Sensors and Actuators
基金
博士后科学基金会项目(20100470735)
